552 



INDEX. 



theorem in the theory of equal 

 roots and multiple points, 375 ; on 

 a new theory of multiplicity, 461 . 



Talbot (H. F.) on the production of 

 instantaneous photographic images, 

 73. 



Thermo-electric currents, on a me- 

 chanical theory of, 489. 



Thermo-electrieal experiments, on 

 some, 185. 



Thomson (Prof. W.) on the quanti- 

 ties of mechanical energy contained 

 in a fluid mass, 489 ; on a mecha- 

 nical theory of thermo-electric cur- 

 rents, ib. 



Tungstate of lime, on the artificial 

 production of crystallized, 397. 



Tyndall (Dr. J.) on the progress of 

 the physical sciences, 81, 1/3, 321; 

 on the measurement of thermo- 

 electric currents, 90; on the re- 

 searches of Dr. Goodman on the 

 identity of the existences or forces, 

 light, heat, electricity and magnet- 

 ism, 127- 



Urine, on the triple or aimnonio- 

 magnesian phosphates occurring in 

 the, 373. 



Veall (S.), notice of the late, 79. 



Verantine, properties and composition 

 of, 360. 



Verdeil (F.) on the green colouring 

 matter of plants, and on the red 

 matter of the blood, 398. 



Vesuvius, on the present condition 

 of, 156; meteorological observa- 

 tory of, 158. 



Vision, on some phenomena of, 55, 

 149, 241, 504. 



Voltaic circuit, on the electroscopic 

 properties of the, 321. 



Wartmann (Prof. E.) on the polari- 

 zation of atmospheric heat, 108. 



Wheatstone (C.) on the physiology 

 of vision, 149, 241, 504; on the 

 invention of the stereoscope, 47^. 



Wichtyne, notice respecting, 143. 



Wohler (Prof.) on copper crystallized 

 by means of phosphorus, 77 ; on 

 the passive state of meteoric iron, 

 477. 



Woods (Dr. T.) on the heat of che- 

 mical combination, 43, 299. 



Zeuschner (Prof. L.) on the sulphur 

 deposits at Swaszowice and Rado- 

 boj, 157. 



END OF THE THIRD VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED LION COURT, FLEET STREET. 



